Title :
Temperature Characteristics of HQT Microwave Circulators
Author :
Lenge, Jens ; Stonies, Robert ; Schulz, Dirk
Author_Institution :
University of Dortmund, ET-HFT, Otto-Hahn-Str. 6, 44221 Dortmund, Germany. lenge@hft.e-technik.uni-dortmund.de
Abstract :
We investigate the influence of temperature fluctuations on the performance of microwave circulators with measurements and numerical simulations. A wide temperature range is considered in order to account for both normal operation conditions and worst case scenarios. We give an estimation of the temperature dependent ferrite saturation magnetization and suggest basic guidelines for the design of HQT circulators.
Keywords :
Circulators; Electromagnetic heating; Ferrites; Finite difference methods; Frequency; Magnetic analysis; Magnetic field measurement; Numerical simulation; Saturation magnetization; Temperature distribution;
Conference_Titel :
Microwave Conference, 2001. 31st European
Conference_Location :
London, England
DOI :
10.1109/EUMA.2001.339075
